3D view pie hotkey (or menu access) on Mac
I managed to locate the listing for the shortcut I believe you're making reference to. It wasn't easy to find. Once you know where it is located under the Keymap category within User Preferences, you can try to either target it using scripting, based on its name (In this case, VIEW3D_MT_view_pie), or, simply create an alternative keyboard shortcut, which will grant you access to the feature without use of any problematic default keys.